Y2J recently revealed on Talk Is Jericho that he had a match between WWE and New Japan Pro Wrestling planned ahead of SummerSlam.
Jericho revealed that he had an idea that would see him facing WWE's Intercontinental Champion in an inter-promotional champion vs champion match-up. Jericho said he pitched a match with Seth Rollins, although he was drinking on the show with guest Jack Slade and most likely meant Dolph Ziggler.
"I placed a call to a certain head of a certain wrestling company, let's just leave it at that. I said I've got something for you. It's boffo box office. I said what do you think about first-time Intercontinental Champion vs Intercontinental Champion Jericho vs. [Seth] Rollins?"
He also said he wanted to be at the Raw before SummerSlam, and attack Rollins to set up the match. Everything could have been set up travel-wise as well, which would have seen Jericho surprising the WWE fans.
The idea for the match he pitched would end with someone running down during the match to cause a disqualification, but "the head of a certain wrestling company" he spoke to didn't agree to the idea. Jericho did say that it got a decent response, but he didn't hear anything back about the idea.